Honestly, I think I'd be hesitant to fly on a plane with that much creosote and soot caked onto the nacelles. If fleet management can't even manage to wash a bird now and then, what other issues are hidden? For instance, "Is that hydraulic stain new, or is it left over from the last time I checked that fitting three years ago?" In addition, that much crud on the skin causes excess drag, which ends up costing more in fuel - all the more incentive to get the plane into a wash pit now and then.
Bookmarks